`cingularmobility.com`

DNSSEC	⚠️ Not signed
NS	`ns0.attdns.net` ⭐
		A	172.29.0.1^{UNSPECIFIED160.0.0.0/3}
NS	`ns10a.attdns.net`
		A	144.160.229.221^{🇺🇸 AS797144.160.0.0/15 AT&T Services, Inc.}
			PTR	`ns10a.attdns.net`
NS	`ns10b.attdns.net`
		A	144.160.128.177^{🇺🇸 AS797144.160.0.0/15 AT&T Services, Inc.}
			PTR	`ns10b.attdns.net`
NS	`ns10c.attdns.net`
		A	144.160.112.19^{🇺🇸 AS797144.160.0.0/15 AT&T Services, Inc.}
			PTR	`ns10c.attdns.net`
NS	`ns10d.attdns.net`
		A	144.160.128.159^{🇺🇸 AS797144.160.0.0/15 AT&T Services, Inc.}
			PTR	`ns10d.attdns.net`
TXT	`v=spf1 -all`
SOA	`ns0.attdns.net`eiss-dns@att.com 2025-09-10 #1

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1779025493

Same first word

cingularmobility.com

cingularmobility.org

cingularmobility.net

DNS History

7 records (5 active, 2 former)

●NSns0.attdns.net2015-06-08 → 2026-05-17 · 2 obs

● 2015-06-08 11:05:18
● 2026-05-17 14:03:20

●NSns10a.attdns.net2015-06-08 → 2026-05-17 · 2 obs

● 2015-06-08 11:05:18
● 2026-05-17 14:03:20

●NSns10b.attdns.net2015-06-08 → 2026-05-17 · 2 obs

● 2015-06-08 11:05:18
● 2026-05-17 14:03:20

●NSns10c.attdns.net2026-05-08 → 2026-05-17 · 3 obs

○ 2026-02-18 09:35:12
● 2026-05-08 01:32:54
● 2026-05-17 14:03:20

●NSns10d.attdns.net2026-02-18 → 2026-05-17 · 3 obs

○ 2015-06-08 11:05:18
● 2026-02-18 09:35:12
● 2026-05-17 14:03:20

○A135.209.156.312015-06-08 → 2016-01-24 · 4 obs

● 2015-06-08 11:05:18
● 2016-01-24 15:50:34
○ 2016-05-04 04:06:42
○ 2026-05-17 14:03:20

○A135.209.168.222015-06-08 → 2016-01-24 · 4 obs

● 2015-06-08 11:05:18
● 2016-01-24 15:50:34
○ 2016-05-04 04:06:42
○ 2026-05-17 14:03:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	m.gtld-servers.net, a.gtld-servers.net, f.gtld-servers.net, i.gtld-servers.net...	-
cingularmobility.com	ns10a.attdns.net, ns10b.attdns.net, ns10d.attdns.net, ns10c.attdns.net	-

✅ Authoritative Response

Server:144.160.229.221

NS records: ns10a.attdns.net, ns10b.attdns.net, ns10d.attdns.net, ns10c.attdns.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cingularmobility.com (unsigned zone)

⏱️ Timing

Total: 407ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`ns10d.attdns.net, ns10a.attdns.net...`
MX	1	`. (pri: 0)`
TXT	1	`v=spf1 -all`
SOA	1	`ns0.attdns.net eiss-dns.att.com`

Analysis

Name Servers

cingularmobility.com's nameservers are ns0.attdns.net, ns10a.attdns.net, ns10b.attdns.net and 2.

Some nameservers for cingularmobility.com are reused by 248.14.172.in-addr.arpa, 252.7.172.in-addr.arpa, 133.0.99.in-addr.arpa and 2.

These name servers are commonly deployed with ns10d.attdns.net, ns10c.attdns.net and ns0.attdns.com.

ns0.attdns.net has the IP address 172.29.0.1.

ns10a.attdns.net's A record is 144.160.229.221.

ns10b.attdns.net's A record is 144.160.128.177.

ns10c.attdns.net's A record is 144.160.112.19.

ns10d.attdns.net's A record is 144.160.128.159.

cingularmobility.com - robtex.com